Date is estimated. A promotional brochure published by the Portland Stove Foundry, Portland, Maine, for its Home Atlantic stove - an image of the stove superimposed on a map of the Atlantic Ocean.
The collection includes several examples of overprinted or otherwise repurposed maps. See ID #1108 (Home Atlantic Stove Company); ID # 1125 (Wm. Hart & Co., gold rush outfitters); ID #2129 (United Church of Canada missionaries).